What Karla said plus we have the Weimer as the admin

Lincoln,
When you click the youtube button you should see {youtube][/youtube}, with square brackets [ ] instead of the { }
The flashing cursor will be between the middle of the ][
paste your link there. It will look like this ----> {youtube]https://youtu.be/Va4vNafZcZs[/youtube} except there will be [ ] in place of { }. (I have to put the { } so it doesn't think it's code and just shows the video.)
Karla's way is a little different but same results.
paste your youtube link ---->
https://youtu.be/Va4vNafZcZsclick and drag your cursor across the link to highlight it
click on the YouTube button. Click Preview and you should see your video.